Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 135/90-15 | 145/85-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 24.57 (624) | 24.7 (627.5) | 0.14 (3.5) 0.6% |
| Width inches (mm) | 5.31 (135) | 5.71 (145) | 0.39 (10) 7.4% |
| Circum. inches (mm) | 77.18 (1960.35) | 77.61 (1971.35) | 0.43 (11) 0.6% |
| Sidewall Height inches (mm) | 4.78 (121.5) | 4.85 (123.25) | 0.07 (1.75) 1.4% |
| Revolutions per mile (km) | 820.95 (510.11) | 816.37 (507.27) | -4.58 (-2.85) -0.6% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.11 mph (32.37 km/h) |
| 25 mph (40.23 km/h) | 25.14 mph (40.46 km/h) |
| 30 mph (48.28 km/h) | 30.17 mph (48.55 km/h) |
| 35 mph (56.33 km/h) | 35.2 mph (56.64 km/h) |
| 40 mph (64.37 km/h) | 40.22 mph (64.73 km/h) |
| 45 mph (72.42 km/h) | 45.25 mph (72.83 km/h) |
| 50 mph (80.47 km/h) | 50.28 mph (80.92 km/h) |
| 55 mph (88.51 km/h) | 55.31 mph (89.01 km/h) |
| 60 mph (96.56 km/h) | 60.34 mph (97.1 km/h) |
| 65 mph (104.61 km/h) | 65.36 mph (105.19 km/h) |
| 70 mph (112.65 km/h) | 70.39 mph (113.29 km/h) |
| 75 mph (120.7 km/h) | 75.42 mph (121.38 km/h) |
| 80 mph (128.75 km/h) | 80.45 mph (129.47 km/h) |
| 85 mph (136.79 km/h) | 85.48 mph (137.56 km/h) |
| 90 mph (144.84 km/h) | 90.5 mph (145.65 km/h) |
| 95 mph (152.89 km/h) | 95.53 mph (153.75 km/h) |
| 100 mph (160.93 km/h) | 100.56 mph (161.84 km/h) |
| 2.35 | 2.73 | 2.94 | 3.07 | 3.21 | 3.31 | 3.42 | 3.55 | 3.73 | 3.91 | 4.11 | 4.27 | 4.56 | 4.88 | 5.13 | 5.29 | 5.38 | 5.71 | 6.17 | 7.17 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2077 | 2413 | 2599 | 2714 | 2838 | 2926 | 3023 | 3138 | 3297 | 3457 | 3633 | 3775 | 4031 | 4314 | 4535 | 4677 | 4756 | 5048 | 5455 | 6339 |
Better Fuel Economy Factory Ratios Increased Power
